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[X86] Add test cases for 32 and 64 bit versions of PR42118. NFC 

llvm-svn: 362457
This commit is contained in:
Craig Topper 2019-06-03 22:34:15 +00:00
parent c3ea7c66fe
commit ac062bbad8
1 changed files with 81 additions and 0 deletions
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81
llvm/test/CodeGen/X86/bmi.ll
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@ -1149,3 +1149,84 @@ define i64 @blsr64_branch(i64 %x) {
}
declare void @bar()
define void @pr42118_i32(i32 %x) {
; X86-LABEL: pr42118_i32:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl %eax, %ecx
; X86-NEXT: negl %ecx
; X86-NEXT: andnl %eax, %ecx, %eax
; X86-NEXT: jne .LBB48_1
; X86-NEXT: # %bb.2:
; X86-NEXT: jmp bar # TAILCALL
; X86-NEXT: .LBB48_1:
; X86-NEXT: retl
;
; X64-LABEL: pr42118_i32:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: negl %eax
; X64-NEXT: andnl %edi, %eax, %eax
; X64-NEXT: jne .LBB48_1
; X64-NEXT: # %bb.2:
; X64-NEXT: jmp bar # TAILCALL
; X64-NEXT: .LBB48_1:
; X64-NEXT: retq
%tmp = sub i32 0, %x
%tmp1 = and i32 %tmp, %x
%cmp = icmp eq i32 %tmp1, %x
br i1 %cmp, label %1, label %2
tail call void @bar()
br label %2
ret void
}
define void @pr42118_i64(i64 %x) {
; X86-LABEL: pr42118_i64:
; X86: # %bb.0:
; X86-NEXT: pushl %esi
; X86-NEXT: .cfi_def_cfa_offset 8
; X86-NEXT: .cfi_offset %esi, -8
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: xorl %edx, %edx
; X86-NEXT: movl %eax, %esi
; X86-NEXT: negl %esi
; X86-NEXT: sbbl %ecx, %edx
; X86-NEXT: andnl %ecx, %edx, %ecx
; X86-NEXT: andnl %eax, %esi, %eax
; X86-NEXT: orl %ecx, %eax
; X86-NEXT: jne .LBB49_1
; X86-NEXT: # %bb.2:
; X86-NEXT: popl %esi
; X86-NEXT: .cfi_def_cfa_offset 4
; X86-NEXT: jmp bar # TAILCALL
; X86-NEXT: .LBB49_1:
; X86-NEXT: .cfi_def_cfa_offset 8
; X86-NEXT: popl %esi
; X86-NEXT: .cfi_def_cfa_offset 4
; X86-NEXT: retl
;
; X64-LABEL: pr42118_i64:
; X64: # %bb.0:
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: negq %rax
; X64-NEXT: andnq %rdi, %rax, %rax
; X64-NEXT: jne .LBB49_1
; X64-NEXT: # %bb.2:
; X64-NEXT: jmp bar # TAILCALL
; X64-NEXT: .LBB49_1:
; X64-NEXT: retq
%tmp = sub i64 0, %x
%tmp1 = and i64 %tmp, %x
%cmp = icmp eq i64 %tmp1, %x
br i1 %cmp, label %1, label %2
tail call void @bar()
br label %2
ret void
}